Question 2.7
7 of 14 in Place Making
Objective
To encourage the use of Sustainable Urban Drainage (SUDS) to reduce flood risk, improve water quality and enhance biodiversity/amenity for the development and/or for the surrounding area.
Question
Which of the following localised strategies for sustainable drainage have been proposed. Any proposed strategy must be designed in accordance with the ‘Sustainable drainage systems design manual’ published by CIRIA (C522):
- Prevention of runoff at source – simple design measures have been included on individual dwellings/buildings (such as minimised paved areas) to allow water to return to the natural drainage system as near to the source as possible and not to contribute to runoff.
- Source Control of runoff rate/volume – design measures have been included that control the rate/volume of runoff being generated close to source such as rainwater harvesting systems, green roofs and individual soakaways for dwellings.
- Site control of water management – water will be managed from several sub-catchments such as roofs and car parks into one large soakaway or device such as an infiltration basin. By control of potential localised flooding and or pollution, this will incorporate the enhancement of biodiversity/amenity for the development and/or its surrounding area.